Illumination sensor with attenuating diffuser

Details Illumination sensor with attenuating diffuser Illumination sensor with attenuating diffuser

1987-03-26

1989-01-03

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250239, H01J 314

Patent

active

047958995

ABSTRACT:
A lighting sensor is provided including a sleeve made from a translucent erial having a bottom intended to be exposed to the light whose illumination it is desired to measure, an optoelectronic component positioned inside the sleeve with its sensitive face disposed in line with said bottom and means for securing said component and said sleeve together.
The invention overcomes in a simple way the problems due to the non linearity of the signal delivered by the optoelectronic component to the saturation of this component and to the narrowness of its aperture angle.

REFERENCES:
patent: 3709615 (1973-01-01), Blakeslee et al.
patent: 4178101 (1979-12-01), Booth
patent: 4181398 (1980-01-01), Sick
patent: 4703173 (1987-10-01), Wood et al.

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